20Cr - JB 6396-2006

Grade	20Cr
Corresponding Standard	JB /T 6396-2006 Specification for The Heavy Alloy Structural Steel Forings
Classification	Alloy Steel

20Cr Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu
Minimum Value	0.18	0.17	0.5	-	-	0.7	-
Maximum Value	0.24	0.37	0.8	0.035	0.035	1	0.2

20Cr Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
15 (sample)	Single quenching + tempering	≥835	≥540	≥10	≥40	≥250	≥47
30 (sample)	Double Quenching and Tempering	≥635	≥390	≥12	≥40	≥190	≥47
≤60	Carburizing + Quenching + Tempering	≥635	≥390	≥13	≥40	≥190	≥39

20Cr Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!